<template>
  <div v-loading="loading" class="container">
    <div class="app-container">
      <!-- 组织架构内容 -->
      <!-- data(数据) props(配置label和children) default-expand-all(默认展开所有节点) -->
      <el-tree :expand-on-click-node="false" :data="depts" :props="defaultProps" default-expand-all>
        <!-- 布局组件 el-row-el-col -->
        <template v-slot="{ data }">
          <el-row style="width: 100%; height: 40px;" align="middle" type="flex">
            <el-col>{{ data.name }}</el-col>
            <el-col>
              <el-row type="flex" justify="end">
                <span class="username">{{ data.managerName }}</span>
                <!-- vue的参数 @click=test => @click=test($event) -->
                <el-dropdown @command="operateDept($event, data.id)">
                  <span class="username">操作<i class="el-icon-arrow-down" />
                  </span>
                  <el-dropdown-menu slot="dropdown">
                    <el-dropdown-item command="add">添加子部门</el-dropdown-item>
                    <el-dropdown-item command="edit">编辑部门</el-dropdown-item>
                    <el-dropdown-item command="del">删除</el-dropdown-item>
                  </el-dropdown-menu>
                </el-dropdown>
              </el-row>
            </el-col>
          </el-row>
        </template>

      </el-tree>
    </div>
    <!-- 放置弹层 -->
    <!-- .sync会默认监听 @update:showDialog = "showDialog = $event" -->
    <AddDept ref="addDept" :show-dialog.sync="showDialog" :current-node-id="currentNodeId" @updateDept="getDepartment" />
  </div>
</template>
<script>
import { delDepartMentAPI, getDepartMentAPI } from '@/api'
import { transListToTreeData } from '@/utils'
import { AddDept } from './components'
export default {
  name: 'Department',
  components: {
    AddDept
  },
  data() {
    return {
      loading: false,
      showDialog: false,
      depts: [], // 组织架构数据
      defaultProps: {
        label: 'name',
        children: 'children'
      },
      currentNodeId: null // 记录当前点击行的id
    }
  },
  created() {
    this.getDepartment()
  },
  methods: {
    async getDepartment() {
      this.loading = true
      this.depts = transListToTreeData(await getDepartMentAPI(), 0)
      this.loading = false
    },
    // 点击下拉菜单的方法
    async operateDept(type, id) {
      if (type === 'add') {
        this.showDialog = true // 显示弹层
        this.currentNodeId = id
      } else if (type === 'edit') {
        // 编辑场景
        // Props的渲染是异步的
        this.currentNodeId = id // 给data赋值 传递给props
        // nextTick => 微任务 异步 nextTick会等到组件的上一次更新完成之后执行
        // this.$nextTick(() => {
        //   // 回调函数会等到上一次更新完成之后
        //   this.$refs.addDept.getDepartMentDetail()
        // })
        await this.$refs.addDept.getDepartMentDetail(id)
        this.showDialog = true // 编辑场景下显示弹层
      } else {
        // 删除场景
        await this.$confirm('确定删除该部门吗')
        // 调用删除接口
        await delDepartMentAPI(id)
        this.$message.success('删除部门成功')
        this.getDepartment() // 重新拉取数据
      }
    }
  }

}
</script>
<style scoped>
  .app-container {
    padding: 20px 150px;
  }
  .username {
    margin-right: 10px;
    font-size: 14px;
  }
</style>
